Adding a left sidebar to a LearnPress course

Hello

I opened a course and want to add it a left sidebar, like I didn’t with posts.

I built a menu and then a widget with the menu.

I entered the editing of the course and choose the widget as the left sidebar:

https://prnt.sc/oyiXOF9jTUjX

I don’t see the sidebar in the lesson. Why?

Thank you!